31333331012 has 12 divisors (see below), whose sum is σ = 54874659840. Its totient is φ = 15654856776.

The previous prime is 31333330967. The next prime is 31333331021. The reversal of 31333331012 is 21013333313.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2946212 + ... + 2956827.

It is an arithmetic number, because the mean of its divisors is an integer number (4572888320).

Almost surely, 2^31333331012 is an apocalyptic number.

It is an amenable number.

31333331012 is a deficient number, since it is larger than the sum of its proper divisors (23541328828).

31333331012 is a wasteful number, since it uses less digits than its factorization.

31333331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904370 (or 5904368 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31333331012 its reverse (21013333313), we get a palindrome (52346664325).

The spelling of 31333331012 in words is "thirty-one billion, three hundred thirty-three million, three hundred thirty-one thousand, twelve".